The Glock 21 Gen 4 is a full-size, semi-automatic pistol chambered in .45 ACP designed for range use and service applications. This rebuilt example retains the Generation 4 ergonomics and construction intended for reliable, everyday handling.
Constructed on a polymer frame with Glock’s Gen4 rough textured surface, the handgun provides a firm, adaptable grip with interchangeable backstraps. The pistol uses a short-barrel profile and fixed sights for straightforward sighting and routine maintenance.
Key Specifications
- The action is Semi-Auto.
- The caliber is .45 ACP.
- The barrel length is 4.6 inches, offering a balance between accuracy and handling.
- The standard capacity is 13 rounds.
- The model designation is 21.
- The condition is listed as Rebuilt.
- The finish is Matte.
- The frame material is Polymer.
- The grip system is Interchangeable with modular backstraps.
- The sights are Fixed Sights.
This Glock 21 Gen 4 45 ACP rebuilt pistol combines full-size .45 ACP performance with the Gen4 ergonomics expected from Glock firearms. Buy the Glock 21 Gen 4 45 ACP online today for range and duty-oriented use.
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